upcoming Tirreno-Adriatico race have announced a star-studded field featuring Grand Tour winners Alberto Contador, ChrisFroome , Vincenzo Nibali and Nairo Quintana. It will be the first time that the four riders with 10 Grand Tour wins between

will start the season on Wednesday in the Vuelta a Andalucia, where he will compete against fellow former Tour winner ChrisFroome . Contador plans to ride in the Giro d'Italia and the Tour, but will skip this year's Spanish Vuelta. He has won

focus only on the Tour, partly because the Giro features an unusually long 59-kilometer (37-mile) time trial. ''That's so long it doesn't suit anybody, not even ( Chris ) Froome or (Alberto) Contador,'' Di Rocco said.

unusually long 59-kilometer (37-mile) time trial. ''That's so long it doesn't suit anybody, not even ( Chris ) Froome or (Alberto) Contador,'' Di Rocco said. --- Andrew Dampf can be followed at www.twitter.com/asdampf

cycling'' because it will boost audiences worldwide. In addition to Contador, the billionaire also hopes to convince ChrisFroome , Nairo Quintana and Vincenzo Nibali to be on the starting line of the three-week events.